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Finding the Fourth Proportional to 348,704.98, 523,057.47 and 99,380.50

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Solution

The fourth proportional to 348,704.98, 523,057.47 and 99,380.50 is: 149,070.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,704.98 : 523,057.47 = 99,380.50 : x
  2. Step 2: Convert to fraction form
    348,704.98/523,057.47 = 99,380.50/x
  3. Step 3: Cross multiply
    348,704.98x = 523,057.47 × 99,380.50
  4. Step 4: Simplify right side
    348,704.98x = 51,981,712,897.34
  5. Step 5: Solve for x
    x = 51,981,712,897.34/348,704.98
  6. Step 6: Final answer
    x = 149,070.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.